Aircraft



PatentedApr. 13, 1926.

UNITED STATE$ WALTER BOESCHE, F PLYMOUTH, PENNSYLVANIA;

AIRCRAFT.

Application filed April 24, 1925. Serial No, 25,497.

To all whom it may concern:

Be it known that L Wanrnn Bonsorm, a citizen of Germany, residing atPlymouth,

in the county of Luzerne and State of Penn than air and lighter than airmachines and proposes to use an enclosed bag and a plurality ofsustaining planes at various pos1- tions'on the structure to give thesame a1r buoyancy. Y

The above and other objects will become apparent inthe descriptionbelow, in which characters of reference refer to like-named parts in thedrawing.

Referring briefly to the drawing, Figure 1 is a top plan view of the aircraft.

Figure 2 is a side elevational view of the.

same. v

Figure 3 is a. cross sectional elevational view taken on line 33 ofFigure 2.

Referring in detail to the drawing, the numeral indicates the fuselage.Th s fuselage is longitudinal in outline and 1s stream-lined thruout itslength having a curved nose fore and aft, and its bottom s substantiallysemi-circular to decrease air resistance of the fuselage to the mimmum.The fuselage has planes 13 and 14: extending transversely therefrom atpositions intermediate its length, and these planes are retained intheir position by spars 15 which extend upwardly and are mounted on theunderside of a flat sustaining surface 16 of the bag. This bag is of thesame length as the fuselage and has a semi-circular 1nverted roof 17whose ends are connected to the fiat surface 16 to form'a hermeticallysealed compartment 18. It is well known that a plane surface in beingprojected horizontally thru the air and slightly tilted has an ovalvacuum pocket formed above the plane surface. This vacuum pocket is ofthe same shape and volume as the curved roof 17 of the bag, andtherefore this vacuum volume is utilized to aid in lifting the aircraft. It is to be noted that the bag used in this construction is rigidand nonyieldable. The roof of the bag is formed in an invertedsemi-circular outline to decrease the air resistance of the same to them1n1- mum, as is the case with the fuselage, and

PATENT oFFI-Caw at its forward and rear ends, is provided with a roundednose. the airship, a plurality of platforms are anchored. Theseplatforms '19 are shown three in number, but may be of any desirednumber to suit the needs of control capacity of the air craft to whichthey are attached. The platforms are superposed one over the other, andbetween them, have vertical steering blades 20 which are fitted on posts21 the latter being adapted to be rotated in order to move the blades12. To each of the platforms 19, an elevator aeleron' 22 is hingedlyattached, the hinges forming part of and projecting from theforward'edge of the aeleron and cooperate withhinge pins anchored in therear ends of the platforms 18 These aeler-ons are also superposed oneover the other and move m unison by being connected together by pairs ofparallel spars 23. The planes 13 and 14 are of hollow construction andhouse the driving means for propelling shafts 24 which extend from theforward or entering edges of the planes and have propellers 25 mountedat their forward ends. These propeller shafts diverge forwardly towardthe outside edge of the planes in which they are anchored so that a sidewise and forward thrust is obtained, resulting in increased propellingpower. The motive power which is adapted to drive these propeller shaftsis housed withinthe fuselage and is connected to the propeller shafts bygearing and other shafts, as is most convenient. The entire airship issupported on wheels, skids, or any other means required to fit the localconditions of the place at whichthe airship is used. The wheels 26,

shown in several views of the drawing, are

of the pneumatic type and are rotatably mounted on a shaft 27 which issu ported in the bearings of undercarriage f and 29, these frames beingsecured to the floor of the fuselage at convenient spacedapartpositions. The compartment 30 of the fuselage may be so constructed toserve for At the rear ends of rames 28 a passengers or freight, or formilitary use, 1

and is entered thru a door 31 which may be located conveniently at thecenter of the This vacuum pocket would be of an.

and the roof 17 of the bag, and the bag is therefore constructed withthese dimensions in view. The bag is provided with an in-' vertedsemi-circular roof to give the least amount of surface"fri'ctioirandresistance to forward travel and its lower surface is formed flat toprovide a sustaining bladefor the entire airship, Ascentand descent iscontrolled by the elevator"a'elerons22 and the rudder bladesvmaneuverthe ship horizontally. Forward travel of the entire ship may be obtainedby rotation of the 'propeh lei" blades which are actuated from the powersituated within the fuselage chamber bag comprising an invertedsemi-circular} roof, the bottom of sa d bag being formed into a flatsustaining surface, a fuselage suspended beneath the flat surface ofsaid bag,

a plurality of horizontal rudders superimposed one above the other andparallel to each other, and vertical rudders between said rudders forsteering the ship horizontally, the rudders being movable to steer theship angularly.

.JfAn airship comprising a stream-lined rigid bag having an invertedsemi-Oval roof, the bottom of saidba'g. being formed into a flat planesustaining surface, a fuselage suspended beneath the flat 'surfaceo'fsaid bag and extendingit's' entirelength, a plurality of horizontalrudders superimposed one above the other and parallel toeach other, andplanes extending outwardly from the fuselage and being suspended fromthe flat surface of the bag intermediate their length, propellershaftsfmounted in the planes and projecting forwardly and angular-1 yfrom the entering edges of said planes in opposite directions, andpropellers on the "shafts of said planes when rotated being adapted to:

create a forward and externally sidewise thrust of said airship.

In testimony whereof I afiix my signature.

WALTER BOESCHE.

